Fix explanation comments in sum function and restore correct implementation

Author: HadiVahidi20

Sprint-2/2-mandatory-debug/0.js

@@ -16,7 +16,7 @@
 
 // =============> write your explanation here
 // it wasn't completely as I predicted, the first console log statement inside the function multiply did worked and
-// it printed 320, which measn that the function parameters a and b took the values 10 and 32 from the function call multiply(10, 32).
+// it printed 320, which means that the function parameters a and b took the values 10 and 32 from the function call multiply(10, 32).
 // but the second console log statement printed "The result of multiplying 10 and 32 is undefined" because the function multiply does not return any value,
 // so the result of multiplying 10 and 32 is undefined. 
 

Sprint-2/2-mandatory-debug/1.js

@@ -1,13 +1,27 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// in this code we have a function called sum that takes two parameters a and b,
+// inside the function there is a return statement followed by a; and then an expression a + b;
+// but in JavaScript, when a return statement is executed, the function exits immediately and any code after the return statement is not executed.
+// so the function will always return undefined because there is no value after the return statement.
+// so the final output will be "The sum of 10 and 32 is undefined"
 
-function sum(a, b) {
-  return;
-  a + b;
-}
+// function sum(a, b) {
+//   return;
+//   a + b;
+// }
 
-console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
+// console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
 // =============> write your explanation here
+
+// it behaved exactly as I predicted, the console log statement printed "The sum of 10 and 32 is undefined"
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+// to correct the code we just need to remove the semicolon after the return statement.
+
+function sum(a, b) {
+  return a + b;
+}
+
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);